Hagerty quotes a GM Engineer: L3B Turbo Four Is a Real Truck Engine! Why does he say that?
For 2022, the engine got an important upgrade. Thanks to improved hardware and a revised tune, the L3B now makes the same power but torque kicks in hard with 430 lb-ft at 3000 rpm—an increase of nearly 100 lb-ft—with a torque curve that retains its start low in the rev range.
GM, which sells more light-duty trucks in North America than any other OEM, is clearly confident in the L3B. The four-cylinder will be the sole powerplant for the upcoming third-generation Colorado and Canyon that were unveiled earlier this summer. In those mid-size applications, the engine will replace three outgoing mills: the 2.5-liter inline-four gasoline engine, 3.6-liter V-6 gasoline engine, and 2.8-liter turbodiesel four.
(graphic via General Motors and Hagerty)
